| Tournament | Round | Maree Heynen | Joan Buchanan |
| 28.05.2006 Ulladulla Championship (NSW) | 6 | 376 | 342 |
| 28.05.2006 Ulladulla Championship (NSW) | 13 | 282 | 376 |
| 03.08.2008 Southern Tablelands Challenge (NSW) | 5 | 366 | 370 |
| 27.03.2010 ACT Round Robin (ACT) | 2 | 288 | 369 |
| 19.02.2011 Wollongong Round Robins (NSW) | 7 | 280 | 409 |
| Head-to-head after 5 games | 1 | 4 | |
| Average score | 318.39 | 373.2 | |
| Spread: | -274 | 274 | |